aboutsummaryrefslogtreecommitdiff
path: root/networking/httpd_ssi.c
diff options
context:
space:
mode:
authorDenys Vlasenko <vda.linux@googlemail.com>2009-09-10 21:24:45 +0200
committerDenys Vlasenko <vda.linux@googlemail.com>2009-09-10 21:24:45 +0200
commitdb4a67628d4e4418d01bbba1c8603a6ca8c3562e (patch)
treef45e2f496d7d7c999dbfb03141ce084d2569f425 /networking/httpd_ssi.c
parent33d8d08f7818a6d10e14ad8397c61adfcd377a6f (diff)
downloadbusybox-w32-db4a67628d4e4418d01bbba1c8603a6ca8c3562e.tar.gz
busybox-w32-db4a67628d4e4418d01bbba1c8603a6ca8c3562e.tar.bz2
busybox-w32-db4a67628d4e4418d01bbba1c8603a6ca8c3562e.zip
networking/httpd_ssi.c: new example CGI handler
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'networking/httpd_ssi.c')
-rw-r--r--networking/httpd_ssi.c102
1 files changed, 102 insertions, 0 deletions
diff --git a/networking/httpd_ssi.c b/networking/httpd_ssi.c
new file mode 100644
index 000000000..f75805923
--- /dev/null
+++ b/networking/httpd_ssi.c
@@ -0,0 +1,102 @@
1/*
2 * Copyright (c) 2009 Denys Vlasenko <vda.linux@googlemail.com>
3 *
4 * Licensed under GPLv2, see file LICENSE in this tarball for details.
5 */
6
7/*
8 * This program is a CGI application. It processes server-side includes:
9 * <!--#include file="file.html" -->
10 */
11
12/* Build a-la
13i486-linux-uclibc-gcc \
14-static -static-libgcc \
15-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 \
16-Wall -Wshadow -Wwrite-strings -Wundef -Wstrict-prototypes -Werror \
17-Wold-style-definition -Wdeclaration-after-statement -Wno-pointer-sign \
18-Wmissing-prototypes -Wmissing-declarations \
19-Os -fno-builtin-strlen -finline-limit=0 -fomit-frame-pointer \
20-ffunction-sections -fdata-sections -fno-guess-branch-probability \
21-funsigned-char \
22-falign-functions=1 -falign-jumps=1 -falign-labels=1 -falign-loops=1 \
23-march=i386 -mpreferred-stack-boundary=2 \
24-Wl,-Map -Wl,link.map -Wl,--warn-common -Wl,--sort-common -Wl,--gc-sections \
25httpd_ssi.c -o httpd_ssi
26*/
27
28/* Size (i386, static uclibc, approximate):
29 text data bss dec hex filename
30 8931 164 68552 77647 12f4f httpd_ssi
31*/
32
33#include <sys/types.h>
34#include <sys/stat.h>
35#include <errno.h>
36#include <stdint.h>
37#include <stdlib.h>
38#include <string.h>
39#include <unistd.h>
40#include <stdio.h>
41#include <dirent.h>
42#include <time.h>
43
44static char line[64 * 1024];
45
46/*
47 * Currently only handles directives which are alone on the line
48 */
49static void process_includes(const char *filename)
50{
51 FILE *fp = fopen(filename, "r");
52 if (!fp)
53 exit(1);
54
55#define INCLUDE "<!--#include file=\""
56 while (fgets(line, sizeof(line), fp)) {
57 char *closing_dq;
58
59 /* FIXME: output text leading to INCLUDE first */
60 if (strncmp(line, INCLUDE, sizeof(INCLUDE)-1) != 0
61 || (closing_dq = strchr(line + sizeof(INCLUDE)-1, '"')) == NULL
62 /* or strstr(line + sizeof(INCLUDE)-1, "\" -->")? */
63 ) {
64 fputs(line, stdout);
65 continue;
66 }
67 *closing_dq = '\0';
68 /* FIXME: (1) are relative paths ok?
69 * (2) if we include a/1.htm and it includes b/2.htm,
70 * do we need to insert a/b/2.htm or b/2.htm?
71 * IOW, do we need to "cd $dirname"?
72 */
73 process_includes(line + sizeof(INCLUDE)-1);
74 /* FIXME: this should be the tail of line after --> */
75 putchar('\n');
76 }
77}
78
79int main(int argc, char *argv[])
80{
81 if (!argv[1])
82 return 1;
83
84 /* Seen from busybox.net's Apache:
85 * HTTP/1.1 200 OK
86 * Date: Thu, 10 Sep 2009 18:23:28 GMT
87 * Server: Apache
88 * Accept-Ranges: bytes
89 * Connection: close
90 * Content-Type: text/html
91 */
92 printf(
93 /* "Date: Thu, 10 Sep 2009 18:23:28 GMT\r\n" */
94 /* "Server: Apache\r\n" */
95 /* "Accept-Ranges: bytes\r\n" - do we really accept bytes?! */
96 "Connection: close\r\n"
97 "Content-Type: text/html\r\n"
98 "\r\n"
99 );
100 process_includes(argv[1]);
101 return 0;
102}